Pre-Grant Publication Number: 20100250597
Filing Date: March 30, 2009Priority Date: March 30, 2008
Inventors: Jiang-Ming Yang, Rui Cai, Xin-Jing Wang, Lei Zhang
Assignee(s): Microsoft Corporation
Current U.S. Classification: 707
View Prior Art for Claim 00018
The method of Claim 15, further comprising:constructing a background topic term for the simultaneous semantic and structure model by selecting some common words by their thread frequencies;defining and normalizing a background topic as a last column of a same topic matrix, X; andoptimizing a collection of threads that share the same topic matrix using the simultaneous semantic and structure model while fixing the background topic during the optimization. 
